Concealed lavatory



W. H. HENDRICKSON CONCEALED LAVA'IORY Original Filed Jan. 6, 1930 2Sheets-Sheet l y 16, 1933- w. H. HENDRICKSON ,618

CONCEALED LAVATQRY Origi al Filed Jan. 6, 1930 2 Sheets-Sheet 2 1 m a I5/ Patented May 16, 1933 rice PATENT,

WALTER H. HENDRICKSON, F ROCKFORD, YILLINOI S, ASSIGNOR TO ABINGDONENGINEERING CORPORATION, OF ABINGDQN, ILLINOIS, A CORPORATION OFILLINOIS r CONCEALED DAVATORY Application filed. January 6, 1930, SerialNo. 418,701. Renewed October 8, 1932;

This invention relates to a concealed lavatory wherein the wash-bowl ispivotally mounted to fold from an extended position up into a cabinet.

In concealed lavatories of this kind'it has been found that there is atendency forthe user to swing the bowl out carelessly, allowing the bowlto drop to extended position, and thus cause damage or breakage to the;bowl or its mounting. It is, therefore, one important object of myinvention to provide a counterbalancing checking device of a relativelysimple and inexpensive form arranged to support the bowl in anyintermediate poto move the bowl all the way from one posi tion to theother, and make it absolutely, impossible for the bowl to drop. Thebowl, in order to fold into the shallow cabinet, is pivotally mounted onswinging hangers, and, according to my invention, the checking devicesare built into the hangers as unitary assemblies.

Another difficulty with these lavatories has been that of keeping thewaterfrom splashing out when the bowl is dumped into the hopper providedfor that purpose in the cabinet. Screens or baflies have been providedinside the hopper to prevent it, but were not found to be satisfactoryfor the purpose and were, furthermore, objectionable in that they wouldsoon get dirty and it was unhandy to remove the same for the cleaningthereof. Moreover, the hopper could not be cleaned without firstremoving the screen or baffle. According to my invention, I" provide aninwardly projecting ledge on the walls ofthe hopper near the top thereofwhich the water is arranged to strike and be therebyv de: flected andthe force thereof broken so that no water will be splashed onto the useror onto the floor. A hopper made in this way can be cleaned easily andthereis, therefore, less likelihood of its harboring odors. j Theforegoing and other objects and adsition so as to make it necessary forthe user vantages of my invention will appear in the course of thefollowing specification, in which reference is made to the accompanyingdrawings, .wherein Figure 1 is a vertical section through a con- 'cealedlavatory embodying my invention; Fig. 2is an enlarged section throughone of the side housings, in which the hanger supports for the wash-bowlare provided, the hanger and the cam associated therewith, together withthe counterbalancing checking device built in the hanger being shown incentral longitudinal section approximately on the line 2 -2 of Fig. 3;

Fig. 3 is a transverse section taken on the broken line 3-3of Fig. 2,and

F ig. 4 is anothertransverse section on the line 4-4l of Fig. 2, butshowing the parts in shifted positions-corresponding to the loweredposition of the bowl.

The same reference numerals are applied to corresponding partsthroughout the views.

Concealed lavatories are well known, and no lengthy descriptionoutlining the pur poses and advantages thereof seems necessary. Itwillsuflice to state that it is common practice to provide a cabinetconsisting of acasing 5 vwith or without shelves in the upperend thereofand providing a hopper 6 in the lower end. A panel 7 conceals the hopper.andthe trap 8 therefor when the casing 5, is set in the .wall, as byfastening the same to'the studding. Folding doors 9, flush with thepanel 7 and the front of the casing5,.are 'arranged to be opened topermit the lowering of the wash-bowl 10 from the folded position shownin full lines to the extendedposition indicated in dotted lines. Thebowl is preferably made of white china or white porcelain enameledsteel.A faucet 11,- preferably of the mixing type, is so located that it fitsin the hollow of the bowl when the latter is folded into the cabinet andis arranged to deliver water to the bowl when the same is lowered foruse. The back 90 of the bowl is provided with a discharge opening 12 sothat when the bowl is raised in the folding thereof into the cabinet,the waste water is discharged into the hopper 6. The usual pipeconnection 13, communicating with the trap 8, avoids any likelihood ofan overflow. As stated above, it has been found that users of this typeof lavatory are often apt to raise the bowl so quickly that water is aptto be splashed out of the hopper onto the user or onto the floor.Screens or baffles, provided in the hopper to prevent such splashing,were not found to be very satisfactory and were, moreover, a nuisancefrom the standpoint that they were unhandy to clean and made itdifficult to clean out the hopper. According to my invention, I providean inwardly projecting ledge 14 on the front and side Walls of thehopper 6 near the upper end thereof which the water discharged into thehopper is arranged to strike on the rebound or back splash and bethereby deflected and the force thereof broken, so that none of thewater is apt to splash out. If desired, the top of the ledge 14 can beused as a place for supporting a removable hood such as that indicatedin dotted lines at 15. Any fine spray that might otherwise escape fromthe hopper would most certainly be caught by the hood. However, inactual practice I find that the hood can be dispensed with.

The wash-bowl 10, in order to fold into a shallow cabinet, cannot have aplain trunnion 1 mounting, unless the back of the cabinet is r the sidewalls thereof for the reception of bolts 19 by means of which thehousing is secured to the side wall of the casing. The hanger 16comprises a pair of spaced side plates or links 20 mounted on a hingepin 21 suitably supported in the upper end of the housing as shown.Slots 22 are provided in the lower ends of the side plates and have thelower ends thereof formed to provide semi-circular V-shaped seats 23 forthe reception of concentric V-shaped annular bearing portions 24provided on a cam shaft 25. The latter constitutes one of the twosupporting trunnions for the bowl 10, as will now be explained. A sleeve26, square on the outside thereof but having a circular bore, isslidably received in a square hole 27 provided in the center of a plate28 fastened, as by means of screws 29 entered in grommets 30, to thedepending side flange on the bowl 10. The sleeve 26 enters a squaresocket 31 provided therefor in the outer end of the cam shaft 25, andthe bolt 32 passing through the sleeve 26 and threading in a center holein the shaft fastens the sleeve rigidly to the shaft. Thus, when thebowl 10 is moved from its one position to the other, the sleeve 26 turnswith it and turns the cam shaft 25. Now, an elongated opening 33 isprovided in the side wall of the casing 5 through which connection ismade between the sleeve 26 and shaft 25, and this opening issufficiently elongated to permit the amount of fore and aft movementcommunicated to the cam shaft by a cam 34 preferably formed integralwith the end of the shaft immediately adjacent the sidewall of thecasing. The cam 34 is substantially triangular in form with the apex 35arranged to ride on an abutment pin 36 suitably carried by a bosscastintegral with the adjacent wall of the housing 17. The ends 37 ofthe base portion of the triangular cam and portions 37 of the sidesthereof near the apex 35 are formed to serve as stops for limiting theturning of the cam to approximately of movement, the base portion of thetriangular cam being arranged to ride on'another abutment pin 38 similarto the pin 36 in the turning of the cam until either end 37 arrives atthe pin, whereupon further movement of the cam is prevented. Obviously,as

the apex portion 35 of the cam rides over the pin 36 from one side tothe other, the shafts 25, constituting the trunnions for the bowl 10,are given movement in a fore and aft direction. This insures clearancefor the inner end of the bowl with reference to the back wall of thecasing in any position of the bowl, and the bowl can be folded to aposition quite close to the back wall, as indicated in Fig. 1. A closureplate 39, fitting snugly about the end of the cam shaft 25, is arrangedtosealthe housing 17 at the opening 33 in any position of the cam shaftwith reference to said opening, so that there will be no danger of anymoisture getting into the housing and causing the working parts of thehanger to get rusty and Work hard and noisily. A plurality of bowed leafsprings 40 are seated in recesses 41 provided in the side face of thecam 34 and bear against the inside ofthe plate 39 to hold it in snugengagement with the side wall of the casing to insure the proper sealWhile still allowing sliding movement of the plate on said wall andmovement of the bowl are preferably built in the hangers 16 as 1 unitaryassemblies. Both of these devices are of the same construction, so thatreference need be made only to the one shown. A plunger 42 has a yoke 43provided on the lower end thereof so as to reach around the cam shaftfrom above the same for connection with a crank pin 44 mounted in arms45 preferably cast integral with the cam shaft. The lower end of theyoke 43 is forked, as indicated at 46, to straddle the pin 44. The upperend of the plunger 42 is slidably received in a hole 47 provided in aswivel block 48. The latter has trunnions 49 onto which the upper endsof the side plates 20 of the hanger 16 are arranged to be hooked, asshown at 50, the edges of the plates being cut away to provide the hooksfor that purpose. A coiled compression spring 51 fits about the plunger42 and rests at its lower end on an annular shoulder 52 provided on saidplunger and at its upper end engages another annular shoulder 53provided on the swivel block 48. When the bowl is moved from the foldedposition shown in full lines in Fig. 1 through approximately tothedotted line extended position, the cam shafts'2'5 on the opposite sidesof the bowl are, of course. turned through the same angularity, therebythrowing the crank pin 44 from the position shown in Fig. 3 to thatshown in Fig. 4, an angularity again equal to 90. Analyzing theoperation of the counterbalaneing or checking device which results fromthis movement of the crank pin 44, it is evident that the pin'44 is inline with the trunnions 49 and the center of the cam shaft 25 when thebowl occupies the folded position (see Fig. 3), and that the plunger 42,regardless of the pressure of the spring 51, is in a neutral position sofar as its having any effect on the bowl is concerned. However, when thebowl is lowered the least bit, the crank pin 44 is moved out ofalignment with the center of the cam shaft and the ,trunnions 49, themoment arm with reference to the center of the crank shaft increasingproportionately as the bowl is lowered more and more and the pressure ofthe springv 51 also increasing proportionate ly, because the spring iscompressed more and more, as the bowl is lowered. As a matter of actualfact, the moment arm and the pressure of the spring efiectii e thereonin any position of the bowl between its raised folded position and itslowered extended position are such that the bowl is accuratelycounterbalanced and will hold any position to which it is moved. Byvirtue of this counterbalancing effect, it is naturally a very easymatter to raise the bowl and move it to folded position. since theweight of the bowl is counterbalanced and, to move the same, it is onlynecessary to overcome the frictional resistance. The construction of thecounterbalancing or checking device is obviously ex- 1. A device of thecharacter described,

comprising in combination, a casing arranged to be mounted in a wall, awash-bowl or equivalent device pivotally mounted for movement withreference to the casing from lowered extended position to a raisedfolded position, the inner end of said bowl having a discharge openingwhereby when the bowl is raised toward folded position the contentsthereof is arranged to be discharged, and a hopper for the lower end ofsaid casing below the bowl and arranged to have the bowl discharge intothe same, said hopper having the front and side walls thereof providedwith an inwardly projecting ledge near the upper end thereof defined byportions of the walls being inclined at an angle to the verticalinwardly and upwardly from the front and side walls, so that any waterstriking the same on the rebound in the emptying of the bowl isdeflected inwardly toward the back wall and the middle of the hoppersubstantially without splashing.

2. A device of the character described, comprising in combination, acasing arranged to be mounted in a wall, a wash-bowl or equivalentdevice pivotally mounted for movement with reference to the casing fromlowered extended position to raised folded position, the inner end ofsaid bowl having a discharge opening whereby when the bowl is raisedtoward folded position the contents thereof is arranged to bedischarged, a hopper for the lower end of said casing below the bowl andarranged to have the bowl discharge therein, said hopper having aninwardly projecting ledge therein for deflecting water striking the sametoward the rear wall of the hopper to prevent splashing out of thehopper, and a hood member for the hopper, said ledge providing a placeon the top thereof whereon the hood is arranged to 7 rest for at leastpart of its support.

3. A device of the character described having in combination a frameprovided with slots in the side walls thereof, housings mounted on theframe on the outside thereof covering said slots, a wash-bowl or thelike in said frame having trunnion parts on the opposite sides thereofextending through said slots into the housings, links pivotall mountedat one end in the housings and having the other end pivotally supportingthe aforesaid trunnions, and means for sealing the slots in the sidewalls of the casing in any position of the trunnions relative thereto.

4. A device of the character described having in combination a frameprovided with slots in the side walls thereof, housings mounted on theframe on the outside thereof covering said slots, links pivotallymounted at one end in said housings and having the other end disposedadjacent the aforesaid slots, a wash-bowl or the like in said framearranged to be pivotally mounted on said links, and two-part trunnionsfor the opposite sides of the wash-bowl for mounting the same on saidlinks, one trunnion part be ing received in a bearing in one of thelinks and the other trunnion part being disposed on the side of thewash-bowl, and means for securing the trunnion parts together.

5. A device of the character described having in combination a frameprovided with slots in the side walls thereof, housings mounted on theframe on the outside thereof covering said slots, links pivotallymounted at one end in said housings and having the other end disposedadjacent the aforesaid slots, a wash-bowl or the like in said framearranged to be pivotally mounted on said links, and two-part trunnionsfor the opposite sides of the wash-bowl for mounting the same on saidlinks, one trunnion part being received in a bearing in one of thelinks, and the other trunnion part, in the case of at least one of saidtrunnions, being slidably received in an opening in a part on the sideof said bowl, and means for securing the trunnion parts together.

6. A device as set forth-in claim 4 includ ing a plate on the inside ofeach housing movable with the first mentioned part of the twoparttrunnion and arranged to close the slot in the side wall of the frame soas to seal the housing with reference to the frame in any position ofthe bowl.

7. A device of the character described hav-- ing in combination a frameprovided. with slots in the side walls thereof, housings mounted on theframe on the outside thereof covering said slots, a wash-bowl or thelike in said frame having trunnion parts on the opposite sides thereofextending through said slots into the housings, links pivotally mountedat one end in the housings and having the other end pivotally supportingthe aforesaid trunnions, and means actingbe-v tween at least one of thetrunnions and the link associated therewith within the housing thereforfor counter-balancing the bowl in any position thereof from foldedraised position to lowered extended posit-ion.

8. A device of the character described having in combination a frameprovided with slots in the side walls thereof, housings mounted on theframe on the outside thereof covering said slots, a wash-bowl. or thelike in said frame having trunnion parts onthe op.-

posite sides th'ereofextendingthrough said slots into the housings,links pivotally mounted-at one end in the housings and havthe other end;pivotally supporting the aforesaid :trunnions, cam means associated withsaid trunnions in said housings for communicating fore and aft movementto the trunnions and bowl accompanied with swinging 'rmovement of thelinks in the movement of the bowl from its one position to the other,and other means in at least one of said housings acting between thetrunnion and the link associated therewith forimposingvariableresistance to the turning of the trunnion in differentpositions thereof whereby to substantially counterbalance the bowl inany position thereof from raised folded-position to lowered extendedposition; J r 9. 'A'Q- ClQX 'lCQ' of the character described, comprisingin combination, a frame member, a wash-bowl orthe like arranged to besupported in-"said frame on trunnions, a pair of laterally spaced linkspivotally mounted with reference to. the" frame on each side thereof andproviding. bearings therein for the trunni'cnsof said bowl, a crank armon each of said trunnions having a crank pin thereon, a plunger bearingon said pin, a swivel block mounted for. oscillation between the twolinks at each side, of they frame and having the plunger reciprocable inan opening therein, and a coiled compression spring for each of said'plungers acting between the plunger and the swivel block to exert acounterbalancing pressure onthe crank pin effective ac cording to theposition of the pin to counterbalance the bowl in positions thereofbetween the raised foldedposition and the lowered extended position. v 1

10. A structure as set forth in claim 9, wherein the links are pivotallymounted at a point above each trunnion, and wherein the plunger has"ayoke portion on the lower end thereof which in the" neutral position ofthe crank pin extends around the trunnion from above the sa-merforconnection with the crank pin below the trunnion.

1-1. In a device of the character described, the combinationwith a framehaving slots in the opposite sides thereof, and a wash-bowl or the likearranged'to be 'pivotally mounted in said-frame on trunnions extendingfrom the'oppositesides of said bowl through said slots, of a housing oneach side of the frame covering the slot" and having the trunnionprojecting therein, a pair of side plates mounted-on a hinge pin in theupper end of said housing. and having bearings in the lower, endsthereof for reception of bearing portions provided on the trunnion, acam turning with the trunnion and bearing against abutments in: frontand behind the same in said housing arranged to move the trunnion foreand aftiin the turning thereof, acrank pin carried by said trunnion at apredetermined radius with reference to its axis, a swivel block havingopposed trunnions pivotally' supported in the side plates near the upperends of the latter, a plunger reciprocable in said block and havingconnection with the crank pin whereby the same is arranged to be movedendwise with reference to the block in the turning of the trunnion, anda compression spring acting between the plunger and the block.

'12. A structure as set forth in claim 11, wherein the cam in saidhousing is disposed adjacent the side wall of the frame, said deviceincluding a plate inside the housing fitting about the trunnion andarranged to close the slot in said side walls from within the housing,and spring means acting between the side of the cam and said plate forurging the latter yieldingly toward a sealing fit on the side wall ofsaid frame.

13. A structure as set forth in claim 11, wherein the crank pin in theneutral position thereof is disposed below and in alignment with thetrunnion and the hinge pin, and wherein the plunger has the lower endthereof arched to reach around the trunnion from above for connectionwith the crank pin.

14. A device as set forth in claim 11, wherein the trunnion proper is inthe form of a separate element arranged to be detachably secured to thebowl, said device including an intermediate connecting member betweenthe trunnion and the bowl, said member being slidably but non-rotatablyreceived in an opening in the side wall of said bowl and fittingnon-rotatably in a socket in the outer end of saidtrunnion, and a boltpassing therethrough from the inner side of the wall of the bowl forsecuring the same to the trunnlon.

- 15. A device of the character described, comprising in combination, acasing arranged to be mounted in a wall, a wash-bowl or equivalentdevice pivotally mounted for movement with reference to the casing fromlowered extended position to a raised folded position, the inner end ofsaid bowl having a discharge opening whereby when the bowl is raisedtoward folded position the contents thereof is arranged to bedischarged, and a hopper for the lower end of said casing below the bowland arranged to have the bowl discharge into the same between the frontand rear walls and close enough to one of said walls for the water totend to bound across the bottom and up the other wall, the lastmentioned wall having an inwardly projecting ledge provided thereonabove the bottom and arranged to be struck by the water for deflectiontoward the other wall so as to prevent splashing. Y

1-6. A device of the character described having in combination a frameprovided with slots in the side walls thereof, a washbowl or the like insaid frame having trunnion parts on the opposite sides thereof extendingthrough said slots, links pivotally mounted at one end relative to saidframe and having. the other end pivotally supporting the aforesaidtrunnions, and means acting between at least one of the trunnions andthe link associated therewith for counterbalancing the bowl in anyposition thereof from folded raised position to lowered extendedposition.

17 A device of the character described having in combination a frameprovided with slots in the side walls thereof, a wash-bowl or the likein said frame having trunnion parts on the opposite sides thereofextending through said slots, links pivotally mounted at one endrelative to said frame and having the other end'pivotally supporting theaforesaid trunnions, cam means associated with said trunnions forcommunicating fore and aft movement to the trunnions and bowlaccompanied with swinging movement of the links in the movement of thebowl from its one position to the other, and means for at least one ofsaid trunnions acting between the trunnion and the link associated therewith for imposing variable resistance to the turning of the trunnion indifferent positions thereof whereby to substantially counterbalance thebowl in any position thereof from raised folded position to loweredextended position. a

18. A device of the character described, comprising in combination, acasing arranged to be mounted in a wall, a wash-bowl or equivalentdevice pivotally mounted for movement with reference to the casing fromlowered extended position to a raised folded position, the inner end ofsaid bowl having a discharge opening whereby when the bowl is raisedtoward folded position the contents thereof is arranged to bedischarged, and a hopper for the lower end of said casing below the bowland arranged to have the bowl discharge into the same, said hopperhaving the front and side walls thereof provided with an inwardlyproject-ing ledge near the upper end thereof formed so that any waterstriking the same is deflected whereby to prevent splashing out of thehopper.

19. A device as set forth in claim 18 including a hood member for thehopper, said ledge providing a place on the top thereof whereon the hoodis arranged to rest.

' 20. A device of the character described, comprising in combination, acasing arranged to be mounted in a wall, a wash-bowl or equivalentdevice pivotally mounted for movement with reference to the casing fromlowered extended position to a raised folded position, the inner end ofsaid bowl having a discharge opening whereby when the bowl is raisedtoward folded position the contents thereof is arranged to bedischarged, and a hopper for the lower end of said casing below the bowland arranged to have thebowl emptied therein toward the rear wallso-that; the water has a tendency to bound across the bottom and upthe'front wall, the last mentioned wall being inclined upwardly and in-.wardly with respect to the vertical toward the rear wall whereby todeflect the water toward the rear wall and prevent splashing.

21. A device of the character described, comprising in combination, acasing arranged to be mounted in a wall, a wash-bowl or equivalentdevice pivotally mounted for movement with reference to the casing, fromlowered extended position to a raised folded position, the inner end ofsaid bowl having a discharge opening whereby when the bowl is raisedtoward folded position thecontents thereof is arranged to be discharged,and a hopper for the lower end of said casing below the bowl andarranged to have the bowl emptied therein toward the rear wall so thatthe. water has a tendency to bound across the bottom and up the frontwall, the last mentioned wall being substantially vertical eX- cept theupper portion which is inclined upwardly and inwardly from the verticaltoward the rear wall whereby to deflect the water toward the rearv walland prevent splashing. t

22. A device as set forth in claim 20 wherein the side walls of thehopper are also inclined upwardly and inwardly from the vertical towardone another so as to deflect the water inwardly toward the middle of thehopper and prevent splashing.

23. A device as set forth in claim 21 wherein the side walls of thehopper aresubstantially vertical except the upper portions thereof whichare inclined upwardly and inwardly from the vertical toward each otherwhereby to deflect water toward the middle of the hopper and preventsplashing.

241. A device of the character described, comprising in combination, aframe provided with openings in the side walls thereof, hOllS'. ingsmounted on the frame on the out-side thereof at said openings, awash-bowl or the like in said frame having trunnion parts on theopposite sides thereof extending through said openings into thehousings, bearing means for the trunnions in said housings pivotallysupporting said trunnions, and means in at least one of the housingscooperating with the trunnion therein and always acting in one directionwith respect to the movement of the bowl to resist downward movement ofthe bowl in any position thereof between folded raised position andlowered extended position, whereby normally to hold the bowl at rest inany position thereof and eliminate the danger of it dropping.-

25. A device of the character described, comprising, in combination, aframe provided with openings in the side walls thereof, housings mountedon the frame on the outside thereofat said openings, a wash-bowl or thelike. in said frame having trunnion parts on the opposite sides thereofextending through said o enings into the housings, bearing means for thetrunnions in said housings pivotally supporting said trunnions, aloading spring in at least one of said housings, and means actingbetween the trunnion in said housings and said spring for loading thespring more and more as the bowl is lowered from folded raised positionto lowered extended position whereby'to having force alwaysacting in onedirection with referenee to the movement of the bowl to counterbalancethe bowl in any position thereof and hold the same at rest withoutdanger of its dropping.

26. A device of the character described, comprising in combination, aframe provided with openings in the side walls thereof, a wash-bowl orthe like in said frame having trunnion parts on the opposite sidesthereof extending through said openings, bearing means pivotallysupporting said trunnions, and means cooperating with at least one ofthe trunnions always acting in one direction with respect to themovement of the bowl for resisting downward movement of the bowl in anyposition thereof between folded raised position and lowered extendedposition, whereby normally to hold the bowl at rest in any positionthereof and eliminate the danger of its dropping.

27. A device of the character described having in combination a frameprovided with slots in the side walls thereof, housings mounted on theframe on the outside thereof cove-ring said slots, a wash-bowl or thelike in said frame having trunnion parts on the opposite sides thereofextending through said slots into the housings, links pivotally mountedat one end in the housings and having the other end pivotally supportingthe aforesaid trunnions, and means in at least one of the housingscooperating with the trunnion therein always acting in one directionwith respect to the movement of the bowl .to resist turning of thetrunnion more or lessa'ccording tohow far the bowl has been loweredwhereby to substantially counterbalance the bowl in any position thereoffrom folded raised position to lowered extended positionand hold thebowl at rest in any position withoutdanger of its dropping.

' 28. A device of the character described, comprising in combination, aframe member, awash-bowl or the like arranged to be sup-- ported in saidframe .on trunnions provided at opposite sides thereof, a link pivotallymounted with reference to the frame on each A and having the plungerreciprocable in an opening therein, and a coiled compression spring onsaid plunger acting between the plunger and the swivel block to exert acounterbalancing pressure on the crank pin ef fective according to theposition of the pin to counterbalance the bowl in positions thereofbetween the raised folded position and the lowered extended position.

29. A device of the character described, comprising in combination, aframe member, a Wash-bowl or the like arranged to be supported in saidframe on trunnions provided at opposite sides thereof, a pair oflaterally spaced links pivotally mounted together with reference to theframe on each side thereof and providing bearings therein for thetrunnions of said bowl, a crank arm on each of said trunnions having acrank pin, a plunger having a bifurcated portion bearing on said pin,the links having bifurcated edge portions in alignment with one another,a swivel block having opposed trunnions mounted in said bifurcatedportions for oscillation between the two links at each side of the frameand having the plunger reciprocable in an opening therein, and a coiledcompression spring for each of said plungers acting between the plungerand the swivel block to exert a counterbalancing pressure on the crankpin effective according to the position of the pin to counterbalance thebowl in positions thereof between the raised folded position and thelowered extended position.

30. A device of the character described, comprising in combination, aframe provided with slots in the side walls thereof, a wash-bowl or thelike in said frame having trunnions on the opposite sides thereofextending through said slots, links pivotally mounted at one end forswinging movement relative to the frame and having the other endpivotally supporting the aforesaid trunnions, and means for positivelymoving the ,trunnions fore and aft relative to the frame in the turningof the trunnions with the bowl,

said means comprising a substantially triangular cam turning with atleast one of said trunnions, and a pair of abutments rigid with respectto the frame and spaced a distance equivalent approximately to theheight of the triangle, the one abutment having the apex portion of thetriangle arranged to ride on the side thereof from one side to the otherof the abutment, and the other abut ment being arranged to have the baseportion of the triangle ride on the side thereof, the said base portionbeing long enough so that the opposite ends thereof serve by engagementwith the abutment to limit turning of the cam through approximately 90from a position corresponding to the folded raised position of the bowlto a position correspondigig 1150 the lowered extended position of theWVALTER H. HENDRICKSON.

